22257412 has 12 divisors (see below), whose sum is σ = 38993920. Its totient is φ = 11116296.

The previous prime is 22257409. The next prime is 22257463. The reversal of 22257412 is 21475222.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789 + ... + 6907.

Almost surely, 2^22257412 is an apocalyptic number.

It is an amenable number.

22257412 is a deficient number, since it is larger than the sum of its proper divisors (16736508).

22257412 is a wasteful number, since it uses less digits than its factorization.

22257412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210 (or 6208 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 22257412 is about 4717.7761710365. The cubic root of 22257412 is about 281.2925445434.

The spelling of 22257412 in words is "twenty-two million, two hundred fifty-seven thousand, four hundred twelve".